. >> holman: facebook, twitter, google-- the online giants are providing more authority to online users by using algorithms that gauge their "collective curiosity" to evaluate the year. hari sreenivasan examines the media trend on the rundown. plus, if a headhunter calls, should you answer? employment expert nick korkodilos offers answers to that and other questions on making sense. all that and more is on our web site, newshour.pbs.org. gwen? >> ifill: and that's the newshour for tonight. on wednesday, we'll have jeff's second story from athens, about how ordinary greeks are coping in tough times. we'll see you online, and again here tomorrow evening. i'm gwen ifill. thank you, merry christmas, and good night. >> major funding for the pbs newshour has been provided by: >> bnsf railway. >> and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. >> and with the ongoing support of these institutions and foundations. and... >> this program was made possible by the corporation for public broadcastin